/Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/DynamicMesh3.h
typedef [TPairExpandEnumerable](API\Runtime\GeometryCore\Util\TPairExpandEnumerable)< [FSmallListSet::ValueIterator](API\Runtime\GeometryCore\Util\FSmallListSet\ValueIterator) > vtx_triangles_enumerable